mod is a tool that allows you to build your script into a single file.
To start, make a folder, and make a src folder.
In this src folder, write your python module.
In its __init__.py, define your app's entrypoint as main
In the project's root, make a _vendor folder.
In this _vendor folder, install all of your dependencies.
Run mod build.
You will get a file with the same name as your project's name. You can run this to run your app.
You can also import your module from this file if you add it to sys.path or PYTHONPATH.